Conservatism hurts the films : The problem: studios have been too conservative, and have been reluctant to go too deep with the 3D, resulting in a 3D movie that doesn’t satisfy anyone. Steve Schklair, CEO of 3ality, said that 3D films can use about 4 percent of the screen’s width for its depth, with 2 percent providing a decent effect. Most live-action films now shoot at a depth of about a half percent, which barely registers with viewers.